Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
1432 Ethiopia (1937 PG)
Classification: Main-belt Asteroid          SPK-ID: 2001432
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2260107130547922 3.6748e-08  
a 2.381352443551883 6.1632e-09 au
q 1.84314127974995 8.6765e-08 au
i 8.271613384924837 3.619e-06 deg
node 123.225861767358 2.3153e-05 deg
peri 218.597334972361 2.3883e-05 deg
M 228.0415416767456 6.7401e-06 deg
tp 2459692.504045389832
(2022-Apr-23.00404539)
2.5617e-05 TDB
period 1342.251634271528
3.67
5.2109e-06
1.427e-08
d
yr
n .2682060433440117 1.0412e-09 deg/d
Q 2.919563607353816 7.5562e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3534  
   data-arc span      30489 days (83.47 yr)  
   first obs. used      1937-08-01  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39482  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:55:21  

Additional Information
 Earth MOID = .840405 au 
 Jupiter MOID = 2.48984 au 
 T_jup = 3.489 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457032.5 (2015-Jan-10.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2269391819620927 3.6937e-08  
q 1.840884136267873 8.7349e-08 au
tp 2457005.719235343318
(2014-Dec-14.21923534)
2.4383e-05 TDB
node 123.3424748283186 2.3123e-05 deg
peri 218.1594295359833 2.3838e-05 deg
i 8.277795761006125 3.6231e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3534  
   data-arc span      30489 days (83.47 yr)  
   first obs. used      1937-08-01  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39482  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:55:21  

Additional Information
 Jupiter MOID = 2.48984 au 
 T_jup = 3.489 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.364363769836241E-15 -3.221854665045055E-15 4.955518919887165E-14 4.640720657629861E-15 -7.844209196025942E-15 -7.737859351550783E-16
q -3.221854665045055E-15 7.629763198268437E-15 -1.302448528027013E-13 -1.076735183264211E-14 1.425313300937627E-14 1.985699542015278E-15
tp 4.955518919887165E-14 -1.302448528027013E-13 5.945422779078946E-10 6.914162513957621E-13 1.527262834140072E-10 3.038446632939873E-13
node 4.640720657629861E-15 -1.076735183264211E-14 6.914162513957621E-13 5.346552526576934E-10 -5.285184036681211E-10 2.331777193500218E-11
peri -7.844209196025942E-15 1.425313300937627E-14 1.527262834140072E-10 -5.285184036681211E-10 5.682305536519035E-10 -2.303501437132541E-11
i -7.737859351550783E-16 1.985699542015278E-15 3.038446632939873E-13 2.331777193500218E-11 -2.303501437132541E-11 1.312697334102985E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.14   n/a E2021B10  
diameter diameter 7.074 km 0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.8458 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Oey, J. (2008) Minor Planet Bull. 35, 132-135.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[McNeill, A.; Mommert, M.; Trilling, D.E.; Llama, J.; Skiff, B. (2019) Ap. J. Suppl. Series 245, id.29.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.769   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1432 Ethiopia (1937 PG)          Discovered 1937-Aug-01 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1937 PG = 1948 OE = 1951 KF = 1973 FQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-07 20:53 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin